Just so everyone knows. They will have to copy and paste the command "wallet.relayfee = (lambda: 0)" into the console every time they run Electrum and connect to a server to make below 1 sat/vByte transactions. That's how it is at least for now.
I just wrote the smallest Electrum plugin ever that just runs this command at start.https://files.ninjastic.space/relayfeezero-0.0.1.zip
Tools -> Plugins -> Add -> Select the zip and install.
How to verify I'm not stealing your coins: Just open the ZIP and read the qt.py file. It is a 7 lines very small code which anyone can read and understand.
I thought the installation procedure for Electrum on OSX was to first extract the zip, then copy the resulting folder to Electrum's plugins folder along with the rest of them... but when I restart Electrum & open Tools>Plugins, despite being in the folder, yours doesn't appear in the list & there's no add option.
(v4.5.8 & I cannot safely upgrade to a higher version of Electrum without buying a new computer)